spad

I have recently built a giant S.P.A.D. gasser (I call it BAD SPAD). And have completed a short maiden flight with an engine out and found the following: it fly’s slow, stable, climbs well, seems to stall gently by mushing out, glides very well, is forgiving, and very cheap to build. I’m thinking...

Hello, I am just not starting to get the parts in order for my next build. I'm planning to use a Ryobi 31cc engine that I've converted and throw it on this: http://www.spadtothebone.org/PDF/Ultra%20Spad%20Stick.pdf .
My question is about the servos that I should use. At first I was looking...